The Skullfiend Tribe

You can use this command ability at the start of the combat phase. If you do so, pick 1 friendly model with this command ability. Until the end of that phase, you can re-roll hit and wound rolls for attacks made by friendly SKULLFIEND TRIBE KHORGORATH units wholly within 10" of that model.

You can re-roll hit rolls of 1 for attacks made by friendly SKULLFIEND TRIBE MORTAL units that are wholly within 12" of an enemy HERO.